MINIMALLY INVASIVE LUNG VOLUME REDUCTION DEVICE AND METHOD

• US 20070221230A1
• Filed: 06/02/2006
• Published: 09/27/2007
• Est. Priority Date: 03/13/2006
• Status: Active Grant

• Current Assignee: EKOS Corporation (Boston Scientific Corporation)
• Original Assignee: PneumRx, Inc. (Boston Scientific Corporation)
• Inventors: Aronson, Nathan, Wu, Patrick, Thompson, David, Lehrberg, David
• Granted Patent: US 8,157,837 B2
• Time in Patent Office: Days
• US Class Current: 128/207.150
• CPC Class Codes: A61B 1/044 for absorption imaging
• CPC Class Codes: A61B 17/00234 for minimally invasive surgery A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 17/12022 Occluding by internal devices, e.g. balloons or releasable wires plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20
• CPC Class Codes: A61B 17/12031 complete occlusion
• CPC Class Codes: A61B 17/12104 in an air passage
• CPC Class Codes: A61B 17/12131 characterised by the type of occluding device
• CPC Class Codes: A61B 17/1214 Coils or wires
• CPC Class Codes: A61B 17/12145 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 17/1215 comprising additional materials, e.g. thrombogenic, having filaments, having fibers, being coated
• CPC Class Codes: A61B 17/12172 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/00809 Lung operations
• CPC Class Codes: A61B 2017/00867 shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61B 2017/12054 Details concerning the detachment of the occluding device from the introduction device
• CPC Class Codes: A61B 5/06 Devices, other than using radiation, for detecting or locating foreign bodies for removing same A61B17/50 ; determining position of probes within or on the body of the patient
• CPC Class Codes: A61B 6/032 Transmission computed tomography [CT]
• CPC Class Codes: A61B 6/12 Arrangements for detecting or locating foreign bodies
• CPC Class Codes: A61B 6/485 involving fluorescence X-ray imaging
• CPC Class Codes: A61B 90/00 Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges protective face masks A41D13/11; surgeon's or patient's gowns or dresses A41D13/12; devices for carrying-off, for treatment of, or for carrying-over, body liquids A61M1/00
• CPC Class Codes: A61B 90/02 Devices for expanding tissue, e.g. skin tissue implements for holding wounds open, surgical tractors A61B17/02; implantable mammary prosthesis A61F2/12; dilators A61M29/00
• CPC Class Codes: A61F 2002/043 : Bronchi
• CPC Class Codes: A61F 2002/046 : Tracheae
• CPC Class Codes: A61M 16/04 : Tracheal tubes catheters in general A61M25/00
• CPC Class Codes: A61M 16/0406 : implanted flow modifiers
• CPC Class Codes: A61M 16/0833 : T- or Y-type connectors, e.g. Y-piece
• CPC Class Codes: A61M 16/208 : Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves
• CPC Class Codes: A61M 2205/0266 : Shape memory materials
• CPC Class Codes: A61M 2205/32 : with radio-opaque indicia
• CPC Class Codes: A61M 37/0069 : Devices for implanting pellets, e.g. markers or solid medicaments for introducing of radioactive sources for interstitial radiation therapy, i.e. brachytherapy A61N5/1027

Abstract

A lung volume reduction system is disclosed comprising an implantable device adapted to be delivered to a lung airway of a patient in a delivery configuration and to change to a deployed configuration to bend the lung airway. The invention also discloses a method of bending a lung airway of a patient comprising inserting a device into the airway in a delivery configuration and bending the device into a deployed configuration, thereby bending the airway.

Claims

1. A lung volume reduction system comprising an implantable device adapted to be delivered to a lung airway of a patient in a delivery configuration and to change to a deployed configuration to bend the lung airway.

2. The lung volume reduction system of claim 1 wherein the implantable device comprises a resiliently bendable delivery configuration.

3. The lung volume reduction system of claim 1 wherein the deployed configuration has a rigid shape.

4. The lung volume reduction system of claim 3 wherein the rigid shape is a C-shape.

5. The lung volume reduction system of claim 3 wherein the rigid shape is an S-shape.

6. The lung volume reduction system of claim 3 wherein the rigid shape is a spiral.

7. The lung volume reduction system of claim 1 wherein the system further comprises an actuator adapted to be operated from outside the patient to change the implantable device from the delivery configuration to the deployed configuration.

8. The lung volume reduction system of claim 7 wherein the actuator comprises an actuation element connected to a distal end of the implantable device and adapted to be moved proximally to bend the device.

9. The lung volume reduction system of claim 7 wherein the system further comprises a lock adapted to lock the device in the deployed configuration.

10. The lung volume reduction system of claim 9 wherein the lock comprises a ratchet.

11. The lung volume reduction system of claim 9 wherein the lock can be unlocked for retrieval.

12. The lung volume reduction system of claim 7 further comprising a connector adapted to connect the implantable device to the actuator and to disconnect the device from the actuator after actuation.

13. The lung volume reduction system of claim 1 wherein the device comprises a member having a plurality of notches adapted to permit the device to bend more easily in one direction than in another.

14. The lung volume reduction system of claim 1 wherein the device is further adapted to self-actuate from the delivery configuration to the deployed configuration.

15. The lung volume reduction system of claim 1 wherein the device comprises shape memory material.

16. The lung volume reduction system of claim 15 wherein the device comprises a plurality of shape memory elements with flexible overtube.

17. The lung volume reduction system of claim 1 wherein the device comprises a plurality of asymmetric segments and a connecting element adapted to connect the segments.

18. The lung volume reduction system of claim 1 wherein the device is adapted to be delivered through a working channel of a bronchoscope.

19. The lung volume reduction system of claim 1 wherein the device further comprises an anchor adapted to anchor the device within the airway.

20. The lung volume reduction system of claim 1 wherein the system further comprises a delivery tool adapted to deliver the device to a treatment site in the airway.

21. The lung volume reduction system of claim 1 wherein the system further comprises a retrieval tool adapted to retrieve the device from the airway.

22. The lung volume reduction system of claim 21 wherein the retrieval device is further adapted to unlock the device from the deployed configuration.

23. The lung volume reduction system of claim 1 wherein the device has a fixed length.

24. A method of bending a lung airway of a patient comprising inserting a device into the airway in a delivery configuration and bending the device into a deployed configuration, thereby bending the airway.

25. The method of claim 24 wherein the step of bending comprises operating an actuator outside the patient, the actuator being operatively connected to the device.

26. The method of claim 24 wherein the step of bending further comprising locking the device into the deployed configuration.

27. The method of claim 24 wherein the step of bending further comprising unlocking the device to permit it to return to the delivery configuration.

28. The method of claim 24 wherein the step of bending further comprising disconnecting the actuator from the device.

29. The method of claim 24 wherein the device comprises a plurality of asymmetric segments, inserting comprises delivering the plurality of asymmetric segment to the airway.

30. The method of claim 24 wherein the step of bending comprises rotating at least one asymmetric segment with respect to at least another asymmetric segment.

31. The method of claim 24 wherein the device comprises shape memory material, bending comprises permitting the device to bend itself.

32. The method of claim 24 further comprising delivering an overtube and subsequently delivering a shape memory element to the overtube.

33. The method of claim 24 wherein the step of bending comprises bending the device into a substantially C shape.

34. The method of claim 24 wherein the step of bending comprises bending the device into a substantially S shape.

35. The method of claim 24 wherein the step of bending comprises bending the device into a substantially spiral shape.

36. The method of claim 24 wherein the step of inserting comprises delivering the device through a working channel of a bronchoscope.

37. The method of claim 24 wherein the step of inserting further comprising retrieving the device from the airway.

38. The method of claim 24 wherein the device is adapted to provide strain relief on an end of the device during deployment.